I'm always skeptical of buying makeup online, but this stuff is wonderful! If anyone is familiar with the Benefit "gimme brow" this stuff is just like it. It's basically a tinted brow gel that fills and thickens the look of your brows. It's fast, easy and great for someone who doesn't want to fuss with a pencil, gel or powder. Plenty of product comes off the brush and I didn't need to re-dip to do my second brow. It's very long wearing, not crunchy feeling and looks very natural. The product is also buildable. As someone else said, I would use this product if you actually have brows, even if they're sparse like mine. I don't know if it would work if you don't have brow hair. It filled in all the little gaps in my brows seamlessly. I would think this would work for someone with a thin or thick brow shape. My hair is naturally medium brown (so are my brows) and I get a full head of light blonde highlights. The light-medium color worked out well.